Method for leaching gold
    21.
    发明申请
    Method for leaching gold 有权
    浸金方法

    公开(公告)号:US20080078269A1

    公开(公告)日:2008-04-03

    申请号:US11896747

    申请日:2007-09-05

    IPC分类号: C22B11/00

    摘要: In a method for leaching gold from copper sulfides, the sulfide ores are first subjected to leaching of copper, thereby producing a leaching residue having 7.9% or less of the copper content. This leaching residue is mixed with a leach liquor, which contains the chloride ion and ferric ion and has 1.9 or less of pH.Gold and copper can be effectively leached from the copper sulfide ores. Ordinarily used oxidizing reagents such as hydrogen peroxide or nitric acid are not used. The gold, copper and iron can, therefore, be leached in a single process and by using an identical leaching liquor. The rate of gold leaching reaction can be enhanced by the co-presence of either copper or bromide ion or both together with the chloride and iron ion.

    摘要翻译: 在从硫化铜中浸出金的方法中,首先对硫化物矿石进行铜浸出,由此生成具有7.9%以下铜含量的浸出残渣。 该浸出残渣与含有氯离子和铁离子的浸出液混合,pH为1.9以下。 铜和铜可以有效地从硫化铜矿石中浸出。 不使用通常使用的氧化剂如过氧化氢或硝酸。 因此,金,铜和铁可以在一个单独的过程中浸出并使用相同的浸出液。 金浸出反应的速率可以通过铜或溴离子的共存或二者与氯离子和铁离子的共存来提高。

    Method of obtaining copper from ore
    22.
    发明申请
    Method of obtaining copper from ore 有权
    从矿石中获取铜的方法

    公开(公告)号:US20090241732A1

    公开(公告)日:2009-10-01

    申请号:US12219894

    申请日:2008-07-30

    IPC分类号: C22B15/00

    摘要: A method of obtaining copper from sulfide ore including copper (hereinafter referred to as feedstock) includes: providing feedstock into acid solution, the acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper from the feedstock with use of oxidizing power of at least one of iron ion and copper ion in the acid solution, with air being blown into the acid solution under an atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution after the leaching; blowing air into the solution after the solid-liquid separation; oxidizing copper in the solution; coprecipitating iron and impurity that are leached into the acid solution from the feedstock; extracting copper from the solution after the oxidizing from which deposition including the coprecipitate is separated; obtaining the extracted copper into sulfuric acid solution as copper sulfate; obtaining copper from the copper sulfate; and recycling hydrochloric acid generated in the extracting in another copper leaching.

    摘要翻译: 从含有铜的硫化矿(以下称为原料)中获得铜的方法包括:向酸性溶液中提供原料,包括碱金属和碱土金属之一的氯化物和溴化物的酸溶液以及铜和铁的氯化物之一 铜和铁的溴化物; 在酸溶液中使用铁离子和铜离子中的至少一种的氧化能力从原料中浸出一价铜和二价铜,空气在大气压下在低于沸点沸点的温度下吹入酸溶液中 酸溶液; 浸出后将固溶液分离出酸溶液; 固液分离后将空气吹入溶液; 在溶液中氧化铜; 从原料中浸出到酸溶液中的铁和杂质共沉淀; 在从包含共沉淀物的沉积物分离的氧化之后从溶液中提取铜; 将提取的铜作为硫酸铜获得硫酸溶液; 从硫酸铜中获得铜; 并回收在另一种铜浸出中提取中产生的盐酸。

    Scroll compressor having a rotated oldham ring
    23.
    发明授权
    Scroll compressor having a rotated oldham ring 失效
    涡旋压缩机有一个旋转的老汉姆环

    公开(公告)号:US06312236B1

    公开(公告)日:2001-11-06

    申请号:US09463827

    申请日:2000-05-25

    IPC分类号: F04C1804

    CPC分类号: F01C17/066

    摘要: A small-size scroll compressor is provided wherein strength of key portions has been enhanced without increasing ring width, ring diameter or key widths of an Oldham's ring. In the Oldham's ring 31, a rotated elliptical ring 31b is formed on x- and y-axes of coordinates by rotating an elliptical ring 31a having axes of coordinates of the major axis and the minor axis respectively in a first radial direction (X-axis) and in a second radial direction (Y-axis) by a predetermined angle in a direction reverse to the direction of revolution of the shaft, and first keys 34, 35 and second keys 37, 38 are respectively opposingly disposed in the first radial direction and in the second radial direction on the rotated elliptical ring 31b. By employing this configuration, the ring width, ring diameter or key widths of the Oldham's ring 31 do not need to be increased, and the length of arm from the point of stress concentration on the bases of the key portions can be shortened, thus relieving the bending moments of the keys and resulting in the control of vibration during high-speed, high-pressure operation and in the improvement of the durability of the key portions.

    摘要翻译: 提供了一种小型涡旋压缩机,其中密钥部分的强度已经增强,而不增加奥德姆环的环宽度,环直径或密钥宽度。 在十字戒指31中,通过沿着第一径向方向(X轴)旋转具有长轴和短轴坐标轴的椭圆环31a,在坐标的x轴和y轴上形成旋转的椭圆环31b ),并且在与轴的旋转方向相反的方向上在第二径向(Y轴)上以预定角度,并且第一键34,35和第二键37,38分别相对地设置在第一径向 并且在旋转的椭圆环31b上的第二径向方向上。 通过采用这种结构,不需要增加奥尔德姆环31的环宽度,环形直径或键宽度,并且能够缩短从键部的基部的应力集中点的臂长度,从而缓解 键的弯矩并且导致在高速,高压操作期间的振动控制和提高键部分的耐久性。

    Scroll compressor having a check valve received in a stationary scroll
member recess
    24.
    发明授权
    Scroll compressor having a check valve received in a stationary scroll member recess 失效
    具有容纳在固定涡旋构件凹部中的止回阀的涡旋式压缩机

    公开(公告)号:US5597296A

    公开(公告)日:1997-01-28

    申请号:US498139

    申请日:1995-07-05

    CPC分类号: F04C18/0215 Y10T137/7892

    摘要: A scroll compressor includes stationary and orbiting scroll members in engagement with each other. The stationary scroll member includes a stationary end plate having first and second end surfaces opposite to each other, a stationary scroll wrap protruding axially from the first end surface of the stationary end plate, a discharge port defined in the stationary end plate in the proximity of a center thereof, and a recess defined in the stationary end plate on the second surface thereof. A check valve is received in the recess so as to open or close the discharge port. The recess has a shape substantially identical to the shape of the check valve and also has a depth greater than a maximum lift of the check valve.

    摘要翻译: 涡旋压缩机包括彼此接合的固定和绕动涡旋件。 固定涡旋构件包括具有彼此相对的第一和第二端面的固定端板,从静止端板的第一端面轴向突出的固定涡旋涡卷,限定在固定端板附近的排出口 其中心,以及限定在其第二表面上的固定端板中的凹部。 止回阀被容纳在凹部中以打开或关闭排出口。 凹部的形状基本上与止回阀的形状相同,并且还具有大于止回阀的最大升程的深度。

    Scroll compressor having out-of-phase back pressure chamber and compression chamber oil-feeding paths
    25.
    发明授权
    Scroll compressor having out-of-phase back pressure chamber and compression chamber oil-feeding paths 有权
    具有异相背压室和压缩室供油路径的涡旋式压缩机

    公开(公告)号:US09239052B2

    公开(公告)日:2016-01-19

    申请号:US13388344

    申请日:2011-06-09

    摘要: A scroll compressor includes a back pressure chamber oil-feeding path for feeding lubricating oil from a high-pressure region to a back pressure chamber, and a compression chamber oil-feeding path for feeding lubricating oil from the back pressure chamber to a compression chamber. One phase in which the back pressure chamber oil-feeding path is communicated from the high-pressure region to the back pressure chamber and another phase in which the compression chamber oil-feeding path is communicated from the back pressure chamber to the compression chamber are shifted from each other, so that the back pressure chamber oil-feeding path and the compression chamber oil-feeding path are never put into the communicating state simultaneously. Thus, after a halt of the compressor, under-communication oil-feeding of the lubricating oil from the high-pressure region via the back pressure chamber to the compression chamber can be prevented.

    摘要翻译: 涡旋压缩机包括用于将润滑油从高压区域供给到背压室的背压室供油路径和用于将润滑油从背压室供给到压缩室的压缩室供油路径。 背压室供油路径从高压区域传递到背压室的一个阶段和压缩室供油路径从背压室连通到压缩室的另一个相位被偏移 使得背压室供油路径和压缩室供油路径不会同时进入连通状态。 因此,在压缩机停止之后,可以防止润滑油从高压区域经由背压室向压缩室的不连通供油。

    Process of leaching gold
    26.
    发明授权
    Process of leaching gold 有权
    浸金过程

    公开(公告)号:US09045811B2

    公开(公告)日:2015-06-02

    申请号:US13482421

    申请日:2012-05-29

    摘要: A process of leaching gold can be inexpensively and efficiently carried out from a mixture containing sulfur and gold, typically from the material containing sulfur and gold that is an intermediate product recovered by the flotation method in the hydrometallurgical method. Specifically, the mixture containing elemental sulfur and gold and an aqueous solution of hydroxide of one or more of metals of alkali metals and alkaline earth metals are combined, the hydroxides reacting with elemental sulfur to form thiosulfate of alkali and/or alkaline earth metal, and the gold thereby being leached by reaction with the thiosulfate.

    摘要翻译: 浸出金的方法可以从包含硫和金的混合物中经常地和有效地进行,通常来自含有硫和金的材料,其是通过浮选法通过浮选法回收的中间产物。 具体地说,将含有元素硫和金的混合物和一种或多种碱金属和碱土金属的金属的氢氧化物水溶液合并,氢氧化物与元素硫反应形成碱金属和/或碱土金属的硫代硫酸盐,以及 因此通过与硫代硫酸盐反应而浸出金。

    Method for recovering metal from ore
    27.
    发明申请
    Method for recovering metal from ore 有权
    从矿石中回收金属的方法

    公开(公告)号:US20090241736A1

    公开(公告)日:2009-10-01

    申请号:US12232103

    申请日:2008-09-10

    IPC分类号: C22B11/00 C22B15/00

    摘要: The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio.The treating steps are as follows. (1) Copper leaching process (CL). The raw material is charged into the first acidic aqueous solution, which contains cupric chloride, ferric chloride, 7 g/L of hydrochloric acid, and sodium chloride. The post-leach liquor contains copper in cuprous state ions and copper in cupric state ions. (2) Solid-Liquid separation step. The resultant solid and liquid of CL step are separated. (3) Air oxidation step (OX). Air is blown into the post solid-liquid separation liquor. The copper in cuprous state ions are oxidized to the copper in cupric state ions. The iron leached in the step (1) is oxidized. Simultaneously, the impurities leached in the step (2) are precipitated. (4) Copper extracting step (CEX). The copper is recovered from the post-liquor of the step (3) (5) Gold recovering step (AL). The residue separated in the step (2) is added to the leach liquor similar to that of the step (1). The steps (1) and (5) are carried out under the atmospheric pressure and at the temperature of boiling point or lower, while blowing air into the leach liquor.

    摘要翻译: 硫化铜矿石在卤化物浴中浸出,不使用特殊的氧化剂,但仅使用空气。 硫化铜矿中的铜和金可以高浸出率浸出。 处理步骤如下。 (1)铜浸出工艺(CL)。 将原料装入含有氯化铜,氯化铁,7g / L盐酸和氯化钠的第一种酸性水溶液中。 后浸出液含有铜离子中的铜和铜离子中的铜。 (2)固液分离步骤。 将所得的CL步骤的固体和液体分离。 (3)空气氧化步骤(OX)。 将空气吹入后固体分液中。 铜离子中的铜被铜离子氧化成铜。 在步骤(1)中浸出的铁被氧化。 同时,在步骤(2)中浸出的杂质沉淀。 (4)铜提取步骤(CEX)。 从步骤(3)(5)金回收步骤(AL)的后液中回收铜。 在步骤(2)中分离的残余物加入到与步骤(1)相似的浸出液中。 步骤(1)和(5)在大气压力和沸点或更低的温度下进行,同时将空气吹入浸出液中。

    PROCESS OF LEACHING GOLD
    28.
    发明申请
    PROCESS OF LEACHING GOLD 有权
    浸金工艺

    公开(公告)号:US20090241735A1

    公开(公告)日:2009-10-01

    申请号:US12216447

    申请日:2008-07-03

    IPC分类号: C22B11/00

    摘要: A process of leaching gold comprising the steps of: a) leaching copper from copper sulfide ore material that contains gold or contains silicate ore containing gold until the copper grade is reduced to 7.9 wt % or less; b) mixing the resulting material having a copper grade of 7.9 wt % or less with a gold leaching solution selected from the group consisting of a first solution containing chloride ions and ferric ions, and a second solution containing chloride ions and iron ions, the iron ions having been oxidized to trivalent ferric ions by air bubbled into the second solution; c) adjusting the pH of the gold leaching solution to 1.9 or less with stirring to leach at least gold in the material into the gold leaching solution by the oxidative activity of the ferric ions contained in the gold leaching solution, wherein the concentration of gold is reduced by selectively removing gold from part or all of the gold leaching solution during gold leaching. This process efficiently leaches at least copper and gold from a copper sulfide ore.

    摘要翻译: 一种浸金的方法,包括以下步骤:a)将铜从含有金的硫化铜矿物料中浸出或含有含有含金的硅酸盐矿石,直到铜等级降低至7.9重量%以下; b)将所得到的铜等级为7.9重量%以下的材料与选自含有氯离子和铁离子的第一溶液的金浸出溶液和含有氯离子和铁离子的第二溶液混合, 已经通过鼓泡入第二溶液的空气氧化成三价铁离子的离子; c)通过搅拌将金浸出溶液的pH调节至1.9或更小,通过金浸出溶液中所含的三价铁离子的氧化活性,将材料中的至少金浸入金浸出溶液中,其中金的浓度为 通过在金浸出期间通过选择性地从部分或全部金浸出溶液中除去金而减少。 该方法有效地从硫化铜矿中浸出铜和金。

    Scroll compressor having a horseshoe-shaped partition wall on the
stationary end plate
    29.
    发明授权
    Scroll compressor having a horseshoe-shaped partition wall on the stationary end plate 失效
    涡旋压缩机在固定端板上具有马蹄形分隔壁

    公开(公告)号:US5634782A

    公开(公告)日:1997-06-03

    申请号:US613318

    申请日:1996-03-11

    CPC分类号: F04C18/0215 Y10T137/7892

    摘要: A scroll compressor includes stationary and orbiting scroll members in engagement with each other. The stationary scroll member includes a stationary end plate having first and second end surfaces opposite to each other, a stationary scroll wrap protruding axially from the first end surface of the stationary end plate, a discharge port defined in the stationary end plate in the proximity of a center thereof, a generally horseshoe-shaped partition wall protruding axially from the second end surface of the stationary end plate, and spaced apart mounting legs protruding axially from the second end surface of the stationary end plate and continuous with the partition wall in such a manner that the partition wall extends between the mounting legs. Each of the mounting legs has a thickness greater than that of the partition wall and also has a height slightly greater than that of the partition wall.

    摘要翻译: 涡旋压缩机包括彼此接合的固定和绕动涡旋件。 固定涡旋构件包括具有彼此相对的第一和第二端面的固定端板,从静止端板的第一端面轴向突出的固定涡旋涡卷,限定在固定端板附近的排出口 其中心,从固定端板的第二端表面轴向突出的一般为马蹄形的分隔壁,以及间隔开的安装腿,其从固定端板的第二端表面轴向突出,并与这些 分隔壁在安装腿之间延伸的方式。 每个安装腿的厚度大于分隔壁的厚度,并且还具有稍高于分隔壁的高度的高度。

    Method of leaching copper and gold from sulfide ores
    30.
    发明授权
    Method of leaching copper and gold from sulfide ores 有权
    从硫化矿石中浸出铜和金的方法

    公开(公告)号:US09290827B2

    公开(公告)日:2016-03-22

    申请号:US13410975

    申请日:2012-03-02

    IPC分类号: C22B3/06 C22B15/00 C22B3/00

    摘要: Disclosed is a method of leaching copper and gold from sulfide ores, which includes Process (1) of bringing a first aqueous acidic solution which contains chlorine ion, copper ion and iron ion, but no bromine ion, into contact with sulfide ores under supply of an oxidizing agent, so as to leach copper component contained in the sulfide ores; Process (2) of separating, by solid-liquid separation, a leaching reaction liquid obtained in Process (1), into a leaching residue and a leachate; and Process (3) of bringing a second aqueous acidic solution which contains chlorine ion, bromine ion, copper ion and iron ion, into contact with the leaching residue obtained in Process (2) under supply of an oxidizing agent, so as to leach gold contained in the leaching residue.

    摘要翻译: 公开了一种从硫化矿中浸出铜和金的方法,其中包括使含有氯离子,铜离子和铁离子但不含溴离子的第一酸性水溶液与硫化矿相接触的方法(1) 氧化剂,以便浸出硫化矿石中所含的铜成分; 通过固液分离将方法(1)中得到的浸出反应液分离成浸出残渣和浸出液的方法(2) 以及使含有氯离子,溴离子,铜离子和铁离子的第二酸性水溶液与氧化剂供给时的方法(2)中得到的浸出残渣接触的方法(3),以浸出金 包含在浸出残渣中。